【摘要】 通过对青海省铁卜加地区1988～1990年燕麦分期播种试验结果的分析得出:该地区燕麦的出苗时间和全生育期随播种期推迟而缩短,其日数与平均气温呈显著的直线负相关。该地区燕麦全生育期为130～140d,完成全生育期需≥0℃的积温1120～1230℃,燕麦产量以4月下旬播种的为最高。高寒地区燕麦以4月下旬至5月上旬播种为宜。更多还原

【Abstract】 The result of sowing A.sativa by stages from 1988 to 1990 in Tiebujia area,Qinghai Province showed that:The time of emergence of seedlings of A.sativa and fully reproductive stage would shorten by the sowing time putted off.There was a significant linear negative corre- lation between day numbers and mean temperature.The fully reproductive stage was 130～140d. To finish it need accumulated temperature 1120～1230℃ of ≥0℃.The yield was the highest when it was sowed in late April.The proper sowing time was in late April or early May in that area.更多还原